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原文
How to determine the lock valve is open or closed The initial heating, some users mistakenly believe that heating is not locking the valve is not open, in fact, not necessarily. The user should first check their own home heating before and after the supply and return water pipeline installation manual valve is open, if the manual valve is turned on, the indoor heat pipe feel cooler. And then determine whether the lock valves open. Most significant of lock valves open and close identification of no apparent opening and closing the lock valves can be identified "six steps" investigation method from the line judge; can also be used hand-to-lock valves on both sides of the pipeline method to determine: if the lock valves before and after both sides of the pipe are the temperature, and essentially the same temperature, indicating the lock valve is open; if the lock valves have temperature and high front-end, locking rear remote valve pipe feel cooler, Description lock valve is turned off; You should contact the heating company (2129632 or customer service hotline) to open the lock valves, heat or commissioned by the property management company to operate; install heat metering device users should be in accordance with check the manual heat metering device is turned on.
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译文：

译文：
　　供暖初期，部分用户误认为暖气不热就是锁闭阀没有打开，其实不一定。用户首先应检查自家暖气的入户前、后供回水管道上安装的手动阀门是否打开，若手动阀门处于开启状态，室内供热管道手感较凉。　　再判断锁闭阀是否开启。大部分锁闭阀有明显的开、关标识，对没有明显开、关标识的锁闭阀可用“顺藤摸瓜”排查法来自行判断；也可以采用用手触摸锁闭阀两侧管道方法进行判断：若锁闭阀前、后两侧管道均有温度，且温度基本一样，说明锁闭阀处于开启状态；若锁闭阀前端有温度且较高，锁闭阀后侧远端管道手感较凉，说明锁闭阀处于关闭状态；此时应联系热力公司（2129632或客服热线电话）开启锁闭阀，或由热力公司委托的物业公司管理人员进行操作；安装了热计量装置的用户，应先按照说明书检查热计量设备是否处于开启状态。

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